12/2 = 6 per hour
6/2 = 3 in 30 minutes.
6+3 = 9
6= 1 hour
3 = 30 minutes.
ADD 1 HOUR + 30 MINUTES = 1 HOUR AND 30 MINUTES.
1 HOUR AND 30 MINUTES IS EQUAL TO 90 MINUTES.
HOPE THIS HELPED☺☺
The first one.............
Answer:
the length is 21
Step-by-step explanation:
50-4-4=42÷2=21
The last answer Is wrong it should have a negative slope
